Curlee,
as a caregiver, I suffered through RA/Lupus flares (stress-related) that were finally diagnosed a little over a year ago - so I totally understand where you are coming from. I found that meditation helped me to manage a bit better.

As others have mentioned, nutrition is a big issue for your sister, and it may be one for you if you are not eating right either. Is there any way you could go with her to see a nutritionist?
Maria

CG to husband - SCC Tonsil T1N2M0 HPV+ Never Smoker
First symptoms 7/2010, DX 12/2010
TX 40 IRMT (1.8 gy) + 10 Cetuximab
PET Scans 6/2011 + 3/2012 clear, 5 year physical exam clear; chest CT's clear of cancer. On thyroid pills. Life is good.